How many copies did Touhou Hero of Ice Fairy: Prologue sell?

An estimated 84k to 137k copies, based on its 3k Steam reviews. This is a labeled estimate from the review count, not exact sales.

How much revenue did Touhou Hero of Ice Fairy: Prologue make?

Touhou Hero of Ice Fairy: Prologue is free to play, so there is no copy-sales revenue to estimate.

How big is Touhou Hero of Ice Fairy: Prologue?

Estimated owners: ≈ 84k–137k; from 3k reviews (Overwhelmingly Positive)

A labeled estimate from the public review count (adjusted for release year), not exact sales. Owner data cross-checked with SteamSpy.

Does this actually work?

We left Touhou Hero of Ice Fairy: Prologue out and predicted the genre from its 8 similar games. Every figure here, including Touhou Hero of Ice Fairy: Prologue's, is estimated from Steam reviews, not self-reported sales.

Copies, estimated from reviews

typical (middle half) 86k–873k

best case 6.9M (NieR:Automata™)

The Action lane

A solid, mid-sized genre: most sell around 212k copies.

A typical game

≈ 212k copies

≈ $945k after Steam's cut

from ~6k reviews

Best case

≈ 6.9M copies

NieR:Automata™ · ≈ $105.9M after Steam's cut

from 152k reviews

Copies and revenue are rough lifetime estimates from the review count; typical figures are medians per column, so they can come from different games.

The lane you'd be entering

Winners here lead with Great Soundtrack + Story Rich, priced around $40.
The games you compared span 2015 to 2024, a lane with a long track record.
A typical game here lands in Diamond ($1M+ before Steam's cut, est.). Tiers: Chris Zukowski's benchmark tiers.

Similar games

Game	Price	Reviews	Tags	Est. copies	Est. revenue
NieR:Automata™ 2017	Est. copies ≈ 5.2M–8.5M 24x vs typical SteamSpy 2M–5M	Est. revenue $57.4M–$154.4M net $104.4M–$237.6M gross	$39.99	152k reviews Very Positive	Great SoundtrackStory Rich +6
Garfield Kart 2015	Est. copies ≈ 655k–1.1M 2.3x vs typical SteamSpy 500k–1M	Est. revenue $899k–$2.4M net $1.6M–$3.7M gross	$4.99	14k reviews Very Positive	Cult ClassicCombat Racing +6
Kagura Survivors: Endless Night 2023	Est. copies ≈ 67k–108k SteamSpy 200k–500k	Est. revenue Free	Free	3k reviews Mostly Positive	Sexual ContentFree to Play +6
永远消失的幻想乡～ The Disappearing of Gensokyo 2018	Est. copies ≈ 108k–176k SteamSpy 200k–500k	Est. revenue $328k–$881k net $596k–$1.4M gross	$10.99	4k reviews Very Positive	AnimeBullet Hell +6
Touhou Hero of Ice Fairy 2024	Est. copies ≈ 214k–348k SteamSpy 100k–200k	Est. revenue $412k–$1.1M net $749k–$1.7M gross	$6.99	9k reviews Overwhelmingly Positive	Bullet HellAnime +6
Noctuary 2023	Est. copies ≈ 62k–101k SteamSpy 50k–100k	Est. revenue $513k–$1.4M net $932k–$2.1M gross	$29.99	3k reviews Very Positive	CuteInteractive Fiction +6
NieR Replicant™ ver.1.22474487139... 2021	Est. copies ≈ 695k–1.1M 4.5x vs typical SteamSpy 500k–1M	Est. revenue $11.5M–$30.8M net $20.8M–$47.4M gross	$59.99	28k reviews Very Positive	Great SoundtrackStory Rich +6
Touhou: Scarlet Curiosity 2018	Est. copies ≈ 40k–65k SteamSpy 100k–200k	Est. revenue $164k–$440k net $298k–$677k gross	$14.99	1k reviews Very Positive	Bullet HellAction +6